﻿//////////////////////////////////////////////////////////////////////////////
//
// Copyright © 1998-2024 Glodon Company Limited.
//
// Licensed under the MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the “Software”),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//////////////////////////////////////////////////////////////////////////////
#pragma once
#include "GcmpGuiMainFrame.h"
#include <QWidget>
#include <stack>

class QPushButton;
class QHBoxLayout;
class QLabel;

namespace gcmp
{
    class GCMP_GUI_MAIN_FRAME_EXPORT ApplyOrCancelWidget : public QWidget
    {
        Q_OBJECT
    public:
        ApplyOrCancelWidget(QWidget *parent, int uiDocID);

    public:
        // ApplyOrCancelWidget接口
        bool PushCommandPair(const std::wstring& hint, const std::wstring& applyCmd, const std::wstring& cancelCmd);
        bool PopCommandPair();
        void ResetPosition();
        void ShowIfThereArePendingCommandPair();
        void ForceHide();
        int GetUIDocID() const { return m_uiDocID; }

    protected:
        void keyPressEvent(QKeyEvent *event);
        bool eventFilter(QObject *watched, QEvent *event);

        private slots:
        void apply();
        void cancel();

    private:
        void processCommand(const std::wstring& cmdStr);
        void installFilter();

    private:
        struct HintAndCommands
        {
            std::wstring Hint;
            std::wstring ApplyCmd;
            std::wstring CancelCmd;

            HintAndCommands(const std::wstring& hint, const std::wstring& applyCmd, const std::wstring& cancelCmd)
                : Hint(hint), ApplyCmd(applyCmd), CancelCmd(cancelCmd)
            {}
        };
        std::stack<HintAndCommands> m_hintAndCommands;

        QHBoxLayout* m_rootLayout;
        QWidget*     m_backgroudWidget;
        QHBoxLayout* m_layoutOfBackgroundWidget;
        QHBoxLayout* m_layoutOfTextArea;
        QHBoxLayout* m_layoutOfButtonsArea;
        QLabel*      m_hintTextLabel;
        QPushButton* m_okButton;
        QPushButton* m_cancelButton;

        int m_uiDocID;
        bool m_isHide;
    };


}